Blender Git Loki

Disable the boolean and modifier python tests.

These tests rely on the behavoir of the old boolean, down the the
exact values of coordinates and ordering of the output vertices.
Because I want the default behavior of boolean to be new boolean
in this branch, this is inconvenient. I will make these tests work
again if/when we merge with master. Probably by adding the flag
that invokes the old behavior to the tests.
New bevel is mostly tested by unit tests now, so disabling the
regression test for it is not a big deal.